Flow of Tunable Elastic Microcapsules through Constrictions

被引：36
作者：
do Nascimento, Debora F. [1 ]
Avendano, Jorge A. [1 ]
Mehl, Ana [1 ]
Moura, Maria J. B. [1 ]
Carvalho, Marcio S. [1 ]
Duncanson, Wynter J. [1 ]
机构：
[1] Pontificia Univ Catolica Rio de Janeiro, Dept Mech Engn, Rio De Janeiro, RJ, Brazil
来源：
SCIENTIFIC REPORTS | 2017年 / 7卷
关键词：
MECHANICAL-PROPERTIES; FABRICATION; PARTICLES; EMULSIONS;
D O I：
10.1038/s41598-017-11950-2
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We design and fabricate elastically tunable monodisperse microcapsules using microfluidics and cross-linkable polydimethylsiloxane (PDMS). The overall stiffness of the microcapsules is governed by both the thickness and cross-link ratio of the polymer shell. Flowing suspensions of microcapsules through constricted spaces leads to transient blockage of fluid flow, thus altering the flow behavior. The ability to tune microcapsule mechanical properties enables the design of elastic microcapsules that can be tailored for desired flow behavior in a broad range of applications such as oil recovery, reactor feeding, red blood cell flow and chemical targeted delivery.
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页数：7
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